This CRL Deluxe 26:1 Ratio Caulking Gun combines case hardened working parts with a contoured handle and trigger design to make this gun the ultimate for dispensing high viscosity sealants. High strength strap frame design features improved high power bulkhead. Includes new cartridge locating straps for holding slightly smaller diameter European cartridge tubes. The spring release plunger lets you load and dispense quickly and easily and releases pressure on the plunger to prevent sealant run-on. A special feature of this gun is the Wear Compensating Device that minimizes wear on the applicator by automatically taking up the slack to provide total trigger action from first use to last. Will approximately double the life of the gun. Also features: die cast zinc alloy body; all component replaceable parts; patented catch plate (sintered steel) and built in ladder hook. Holds all standard size caulking cartridges.